Ventilator



M. HAUSER VENTILATOR.

APPLICATION FILED MAR. 14. I919.

2 SHEETS-SHEET I.

an'uentoz M. HAUSER.

VENTILATOR.

APPLICATION FILED MAR. 14. I919.

1 ,3 1 9,52% Patented Oct. 21,1919.

2 SHEETSSHEET 2.

an uani'oz A :i 1 MM THE mxlia'mmm PLANOORAPIT co. WASHINGTON, m

UNITED STATES PA EN OFFICE.

mart an nausea, or KANSAS CITY, mesons;

To all whOmitmag cmwern: i Be it known that I, MARTIN HAUSER, a citizen o'l the United States, residing at Kansas Gity, in the countyot Jackson and State of Missouri, have invented certain new and useful -Iinproveine1'1ts in Ventilators; and I do declare the following to be a full, clear, and exact description of the invention, such .aswill enable others skilled in the art to which it appertains to make and use the same, reference being had. to the accon'ipanying drawings, and to the letters and figures of reference. marked thereon, which form a part of this specificationa a i This invention relates to ventilators and it is particularly adapted for use in connection with schoolrooms, 'auditoriums, theaters, lecture halls and' the like where individual ventilators are distributed over a relatively large area. One of the objects ot the invention is to provide an ineXpeir sive, durable and efficient ventilator which may be conveniently attached to a floor or.

similar support and should the occasion demand, provide a base or support for an article o'f 'liirniture, such as a seat, desk, table or the like.

In the drawings,

Figure I is a sectional view through a ventilator constructed in accordance with my invention.

Fig. II is a detail perspective view of the same.

Fig. III is a fragmentary sectional view through the shell, part of the damper be-- ing shown in elevation.

Fig. IV is a side elevational view of a modified "term of device used as a chair support, and

Fig. V is a sectional view of the chair support.

Referring now to the by numerals of reference:

1 designates a hot air flue shown as extending through the floor 2 of a suitable building. Capping the flue is a concaveconvex shell 3 having a closed upper end wall at and a peripheral flange 5, the latter being adapted to receive the fastening devices 6 whereby the shell may be secured to the floor. The peripheral wall of the shell is provided with elongated vertical slots 7 as best shown in Figs. I and II, whereby the air discharging from the fine 1 may pass through. openings or slots drawings I vmrrrna'ron.

. iameseWa hers mansion-2.1.1919- A ine-antenna March 14,1919. Seri a1No,28 2,663.- i

7- into the surrounding atmosphere to heat or ventilate the building, asthecase may be.

8 and 9 are inwardly projecting guide ribs which engage notches'lO. and 11 in the peripheral flange 12 otthe vertically adjustable damper 13, which is shown as: consisting of a truncated cone-shaped disk, adjnstably connected to an adjusting screw 14:

' suspended from'the end a of the. shell 3.

The damper 13 isadapted to entirely close over the end of the conduit 1 but through the medium of the adjusting screw is adapted to. move vertically away therefrom to. perm-it discharge of the airtroni thel flue through the openings 7, the positionfof the damper. determlninguthe eftective cross sectional area of the slots or. 01361111 4557 because the outer. diameter of the damper; is

slightly less than .the inner. diameter oi the shell.

In Figs.

vided with a boss or enlargement 15 to receive a tiltable socket member 16 on which is mounted a standard 17 carrying a seat 18. The damper 19 is secured to a bolt 20 which is exteriorly accessible whereby the-damper may be raised and lowered toward and away from the flue 1. Within the boss 15 is a recess 21 receiving a nut 22 on the hollow bolt or sleeve 23, the head 24: of which bears upon the seat 25 of the standard 17 The openings in the boss 15 and in the socket member 16 through which the sleeve 23 passes are slightly larger than the exterior of the sleeve so that the sleeve can be tilted and consequently permit tilting of the socket member 16 so that the seat 18 may be tilted to the proper angle. The construction just described enables the device to be so arranged that it serves the dual purpose of both a ventilator and a furniture support although obviously slightly more expensive than the construction shown in Figs. I, II and III.

From the foregoing it will be seen that the ventilator willv be inexpensive but e'l'licient, the cost being greatly reduced because it will consist of substantially two castings, the outershell and the damper, which may be readily cast and secured together by a commercial screw or bolt 14-, the damper acting as a nut as well as the adjusting memher (see Fig. I), and it will be appreciated tint the cost of stitch a device is an important IV and V, I have shown a I 'sllghtly modified torm of ventilator ==1n "which the concave-convex shell 15 is profactor when it is considered that in some auditoriums the number of ventilators used flue andto the'elongated slots upon turning of the screw, the screw having a head proj ec ting through the horizontal wall of the I shell whereby access thereto may be had for may run into the thousands.

Having thus described my invention, what -I claim' as new therein, and desire to secure by Letters Patent, is: V r i 1. Ina ventilator, the combination with a flue, of an inverted concave-convex shell surrounding the flue and having vertically arranged elongated slots in the wall thereof, a screw suspended from the center of the shell, and adamper threaded on the screw and vertically adjustable with relation to the fiue and to the elongated slots upon turning of the screw.

2.111 a ventilator, the combination with.

a flue, of an inverted concavo-convex shell surrounding the flue and having vertically arranged elongated slots in the wall thereof, a screw suspended from the center of the shell, and aconical damper threaded on the screw and vertically adjustable with relation to the flue and t0 the elongated slots upon turning of the screw. r

3. In a ventilator, the combination with a flue, of an inverted concave-convex shell surrounding the flue and having vertically arranged elongated slots in the wall thereof, a screwsuspended from the center of the shell,

Copies of this patent may be obtained for five cents each, by addressing the and a damper threaded on the screw and verticallyI'adjustablewvith relation to the operation by a tool, H e

4. Aventilator comprising a cap-shaped shell consisting of a concavo-convex body having vertically elongated slots in the side wall thereof, a screw introduced from the exterior through the shell and locatedin the center thereof, and a damper threaded to and suspended by the screw said damper being vertically adjustable with respect to the elongated slots.

z 5. A ventilator comprising an inverted concavo-convex shell having elongated slots in the wall thereof,a boss carried by the horizontal portion of-the shell and provided with a central opening, a furniture standard adapted to be seated upon the boss having an opening alining therewith, a screw projecting throughthe standard and the boss and having a threaded portion at its lower end, and a vertically adjustabledamper car:

ried by the threaded end of the screw.

In testimony; whereofI aflix my signature,

7 MARTIN HAUSER.

Commissioner of Patents. 7

' Washington, D. G. I 

